# -*- coding: utf-8 -*-
# @Time    : 2021/1/2 下午4:47
# @Author  : tgy

from os import system

def test01():
    pass
    names = set((1,2,1))
    print(names)
    # names.discard(2)
    # names.remove(5)
    # set.add([1])
    print(names)
    names.update([2,3])
    print(names)

if __name__ == '__main__':
    ...
    # test01()
    print(system('system_profiler SPStorageDataType'))
